Finding the Fourth Proportional to 198,574.63, 274,034.81 and 107,930.81
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Solution
The fourth proportional to 198,574.63, 274,034.81 and 107,930.81 is: 148,945.50
Step by Step Solution
- Step 1: Write the proportion equation
198,574.63 : 274,034.81 = 107,930.81 : x - Step 2: Convert to fraction form
198,574.63/274,034.81 = 107,930.81/x - Step 3: Cross multiply
198,574.63x = 274,034.81 × 107,930.81 - Step 4: Simplify right side
198,574.63x = 29,576,798,424.96 - Step 5: Solve for x
x = 29,576,798,424.96/198,574.63 - Step 6: Final answer
x = 148,945.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.